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Note 3 - Equity - Schedule of Warrants (Details) - $ / shares
 3 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Class of Warrant or Right, Exercisable, Weighted Average Exercise Price (in dollars per share) $ 4.13
$Class of Warrant or Right, Outstanding (in shares) 1,108,805  
Class of Warrant or Right, Weighted Average Remaining Contractual Term (Year) 1 year 4 months 6 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price (in dollars per share)   $ 4.13
Class of Warrant or Right, Warrants, Exercisable, Number (in shares)   1,108,805
Exercise Price, Four Dollars, Minimum [Member]    
Class of Warrant or Right, Exercisable, Weighted Average Exercise Price (in dollars per share) $ 4 $ 4
$Class of Warrant or Right, Outstanding (in shares) 1,085,068  
Class of Warrant or Right, Weighted Average Remaining Contractual Term (Year) 1 year 4 months 6 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price (in dollars per share)   $ 4
Class of Warrant or Right, Warrants, Exercisable, Number (in shares)   1,085,068
Exercise Price, Ten Dollars, Maximum [Member]    
Class of Warrant or Right, Exercisable, Weighted Average Exercise Price (in dollars per share) $ 10 $ 10
$Class of Warrant or Right, Outstanding (in shares) 23,737  
Class of Warrant or Right, Weighted Average Remaining Contractual Term (Year) 1 year 3 months 25 days  
Class of Warrant or Right, Outstanding, Weighted Average Exercise Price (in dollars per share)   $ 10
Class of Warrant or Right, Warrants, Exercisable, Number (in shares)   23,737